Tubing-machine.



V. ROYLE.

TUBING MACHINE.

APPLICATION FILED JUNE 12, 1914.

1 9 IL 823 7 1, Patented May 9, 1916.

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men STATES ra rnnrr onnron.

VERNON BOYLE, OF PAT ERSON, NEW JERSEY.

TUBING-MACHINE.

To all whom it may concern 1 Be it known that T, VERNON BOYLE, a citizen of the United States, and resident of Paterson, in the county of Passaic and State ing machine either for straining or tubemaking, may be materially increased and all danger of overcrowding the machine with material avoided.

' With these ends in View, my invention consists in certain features of construction and combinations of parts as will be hereinafter more fully described and pointed out in the claims.

. In the accompanying drawings, Figure 1 is a top plan view of the head portion of the machine. Fig. 2 is a View of the same in vertical section in theplane of the line AA of Fig. 1. Fig. 3 is a transverse section in the plane of the line B-B of 2.

Fig. 4 is a partial face view of the strainer plate. Fig. 5 is a partial i'ace view of the screen which is placed over the inner face of the strainer plate, and Fig. 6 is a portion of a die, core bridge and core which may be substituted for the strainer plate and 1 strainer when the machine is used as a tube making machineinstead of a straining machine.

The cylinder of the machine is denoted by i, the stool; worm by 2, and the body of the strainer head by 3. The body portion provided with a plurality of outlets, in the present instance three, one of these being in axial alinement with the stock worm and the other two being located at right angles to this one and placed diametrically opposite each other. These several openings are closed by hollow nuts denoted respectively by 4" 8, which screw into the mouths Specification of Letters Patent.

Application filed June 12, 1914.

Patented May 9, 1916.

Serial No. 844,835.

of the openings and hold in place either the strainer plate or the die and core bridge as the case may be. The strainer plates are similar in construction. One of them, shown in section in Fig. 2, is denoted by 9, and this is provided with polygonal shaped openings, in the present instance, openings substantially rectangular in shape, as de noted at 10, Fig. 4:. These polygonal shaped openings, as distinguished from the ordinary circular shaped opening, are of importance in the structure since they allord an opportunity of less area of web between the openings than where the round .are employed, and give greater freedom for the escape of the material forced through the screen 11, placed over the inner face of the strainer plate.

The opposite sides of the head intermediate of the discharge openings, are covered by plates 12, 13, spaced from the body 3 of the head, to form chambers 14, 15, for the circulating of either a heating or a cooling liquid as may be desired, these chambers being in communication with each other by suitable ports 16, 17, see Fig. 3,

Which connect with annular passageways 18, 19, surrounding the lateral discharge openings, and by a port 20, with an annular passage 21, surrounding the forward discharge opening. Thesechambers .14, 15, for the circulating medium, also communicate through ports 22, 23, with passages 24:. 25, for the circulating medium, in a wall of the cylinder 1. V

The stock worm 2, has a gradually decreasing pitch from its rear toward its forward end, so that its power upon the material being operated upon is increased as the material reaches the interior of the head.

The die, core bridge and core, in the present instance, a multiple core, are represented respectively by 26, 27, 28, in Fig. 6, and are of such dimensions that they will fit the position occupied by the strainer plates 9 in the several discharge passages when it is desired to use the machine as a tube-making machine instead of a straining machine.

By constructing the head with a plurality of discharge openings the stock worm may be used to its full capacity, the output being materially increased because there is no danger of overloading since the material will find relief through the lateral passages llll when the forward discharge passage is overcharge passages render it feasible to use a stock wormwhich will feed a much greater quantity for a cylinder of a given diameter than where one discharge opening alone is employed, The location of certain of the discharge openings at an angle to the forward discharge opening is also a feature vided with laterally disposed discharge openings, chambers intermediate of said discharge openings for a circulating medium,

and passages in said head for a circulating medium leading from said chambers and extending around said discharge openings.

2. A tubing machine having a head provided with a discharge opening, a strainer plate provided with polygonal shaped openings arranged to seat in the discharge opening and a screen in proximity to a face of the strainer plate,

In testimony, that I claim theforegoing .aS my invention, I have signed my name in presence of two Witnesses this fourth day of June, 191 f.

\ .VERNONROYLE.

Witnesses: HEBER Rom,- F. J. BRADLEY. 

